LBTEK offers a series of pneumatic trifilar vibration isolation optical tables. The tabletop consists of a high-permeability stainless steel top plate, a sealing cup layer, a central honeycomb core, and a bottom steel plate. This structure effectively prevents liquids and contaminants from penetrating into the honeycomb core and suppresses airflow between tapped holes, ensuring the platform remains clean and sealed. The tabletop undergoes precision machining and a micro-pattern matte finish, achieving a flatness of 0.05–0.10 mm / 600 × 600 mm and a surface roughness of 0.8 μm. Beneath the tabletop is the pneumatic trifilar vibration isolation system. The isolation legs adopt an independent round-leg support design that eliminates global resonance, and can be configured as four-leg or six-leg structures depending on the tabletop size. The system integrates two core technologies: pneumatic levitation and trifilar pendulum isolation. The pneumatic levitation employs a dual-chamber air spring structure, using high-pressure gas to form a stable air cushion between the platform base and the plenum chamber support structure. This achieves non-contact support between the platform and the floor, effectively isolating the platform from ground vibration. During operation, pressure variations within the rubber air bladder serve as the key mechanism for vibration reduction. The dual-chamber design — comprising the plenum chamber and an auxiliary chamber — further reduces vertical stiffness while providing essential laminar flow damping through micro-scale orifices, ensuring rapid and effective absorption of vibration energy when the platform is disturbed. The trifilar pendulum isolation system, through its precisely engineered three-wire pendulum mechanism, provides an extremely low natural frequency in the horizontal direction, further blocking the transmission of high-frequency vibration. In addition, the entire isolation system is equipped with an advanced pneumatic control circuit, with all pneumatic components sourced from reputable brands to ensure reliable and long-lasting system operation.